Update README.md

README.md

@@ -53,8 +53,7 @@ class Adder {
 })();
 ```
 
-## Custom workers
-
+### Custom workers
 The above examples only work when the class/function is not dependent on the containing scope, i.e. other libraries or global objects. But, you can create a custom worker.js file and move the code in there. In the worker, you can expose your object/function/class using <i>workly.expose</i> method.
 
 In this example, the function depends on moment.js
@@ -89,11 +88,11 @@ workly.expose(friendlyTime);
 })();
 ```
 
-## Caveats
+### Caveats
 If you're not using a custom worker, the function/class being pushed to the worker cannot depend on the containing scope.
 Since workers do not have access to DOM, DOM manipulation is not supported. 
 
-## Examples
+### Examples
 See the [examples folder](https://github.com/pshihn/workly/tree/master/examples)
 
 ### License